tree 7c24faf20b3215347b95b569437261c51b36ae46
parent b48732e4a48d80ed4a14812f0bab09560846514e
author Daniel Borkmann <daniel@iogearbox.net> 1432555683 +0200
committer David S. Miller <davem@davemloft.net> 1432700650 -0400

tools: bpf_jit_disasm: fix segfault on disabled debugging log output

With recent debugging, I noticed that bpf_jit_disasm segfaults when
there's no debugging output from the JIT compiler to the kernel log.

Reason is that when regexec(3) doesn't match on anything, start/end
offsets are not being filled out and contain some uninitialized garbage
from stack. Thus, we need zero out offsets first.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>